МОЛОЧНАЯ ПРОДУКТИВНОСТЬ И ХОЗЯЙСТВЕННО-ПОЛЕЗНЫЕ ПРИЗНАКИ КОРОВ В СВЯЗИ С СОЧЕТАЕМОСТЬЮ ЛИНИЙ

L.Yu. Bolotova, R.P. Karagod & T.V. Lukashenkova
In work data by efficiency of various trial and error methods are cited. The analysis of the received results shows, that good data have been received at cross-country of lines, best of which are necessary for using in selection work for carrying out of more correct selection of parental pairs with the purpose of reception of posterity of desirable quality.
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